Nouns denoting natural phenomena
- jet stream
- a high-speed high-altitude airstream blowing from west to east near the top of the troposphere; has important effects of the formation of weather fronts
- line
- a single frequency (or very narrow band) of radiation in a spectrum
- vitelline circulation
- circulation of blood between the embryo and the yolk sac
- electrical disturbance
- electrical signals produced by unwanted sources (atmospherics or receiver noise or unwanted transmitters)
- birefringence
- splitting a ray into two parallel rays polarized perpendicularly
- decay
- the organic phenomenon of rotting
- death
- the permanent end of all life functions in an organism or part of an organism
- starlight
- the light of the stars
- torchlight
- light from a torch or torches
- geological phenomenon
- a natural phenomenon involving the structure or composition of the earth
- incandescence
- the phenomenon of light emission by a body as its temperature is raised
- nuclear winter
- a long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war; a layer of dust and smoke in the atmosphere would cover the earth and block the rays of the sun; most living organisms would perish
- gas pressure
- the pressure exerted by a gas
- calm
- wind moving at less than 1 knot; 0 on the Beaufort scale
- draught
- a current of air (usually coming into a chimney or room or vehicle)
- debacle
- flooding caused by a tumultuous breakup of ice in a river during the spring or summer
- zodiacal light
- a luminous tract in the sky; a reflection of sunlight from cosmic dust in the plane of the ecliptic; visible just before sunrise and just after sunset
- gamma radiation
- electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength
- flare
- am unwanted reflection in an optical system (or the fogging of an image that is caused by such a reflection)
- butterfly effect
- the phenomenon whereby a small change at one place in a complex system can have large effects elsewhere, e.g., a butterfly flapping its wings in Rio de Janeiro might change the weather in Chicago
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